Jiri Polivka commented on June 29, 2016
Okay, some 75 years following the invention of the magnetron, we lived long enough to see a semiconductor device that can do the same with almost a comparable power. It needs, however, an isolator to reduce load reflections, and is quite sensitive to temperature and load mismatch. When its cost would allow to replace the old good magnetrons, with incredible life time and low cost?